2) A little tykes toy car (mass = 7.85 kg) is left on a hill which is at an angle of,17 degrees. The toy car is atrest. The coefficient of kinetic friction between the toy and the ground is 0.33; while the coefficient of staticfriction is 0.36.a) Draw the freed body diagram for the little tykes toy.b) Solve for the friction force.

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Description: 2) A little tykes toy car (mass = 7.85 kg) is left on a hill which is at an angle of,17 degrees. The toy car is atrest. The coefficient of kinetic friction between the toy and the ground is 0.33; while the coefficient of staticfriction is 0.36.a) Dr

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College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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2) A little tykes toy car (mass = 7.85 kg) is left on a hill which is at an angle of,17 degrees. The toy car is at
rest. The coefficient of kinetic friction between the toy and the ground is 0.33; while the coefficient of static
friction is 0.36.
a) Draw the freed body diagram for the little tykes toy.
b) Solve for the friction force.

Expert Solution

Step 1 a) Free body diagram of toy

Where,

$N = n o r m a l f o r c e F_{f} = f r i c t i o n f o r c e m = m a s s o f a n o b j e c t θ = A n g l e o f i n c l i n e d p l a n e$

Step 2 Formula

Toy is at rest hence, net force exerted on toy is zero.

Forces acting on toy in vertical direction are as follow:

$N = m g \cos θ 1)$

Forces acting on toy in Horizontal direction are as follow:

$F_{f} = m g \sin θ 2)$

We know that,

$F_{f} = μ_{s} N 3) w h e r e, μ_{s} = C o e f f i c i e n t o f s t a t i c f r i c t i o n$

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